Why Is Meghan Trainor’s “All About That Bass” No. 1?

Trainor’s retro-girl-group, Doris Day–cum–Betty Everett song—celebrating the ladies who tilt plus-size and, more importantly, the men who love them—is basically omnipresent. For nearly a month it’s had the biggest radio audience in the U.S., and it’s sold roughly 2.7 million downloads. According to Billboard and Nielsen, it’s been YouTube’s most-streamed music video for most of September and October. Maybe you haven’t been clicking the “play again” button on Vevo, but an impressionable 10-year-old you know probably has.